return {
    ROOM_PLAYER_ENTER = 0x0100,
    ROOM_PLAYER_EXIT = 0x0101,
    ROOM_PLAYER_READY = 0x0102,
    ROOM_PLAYER_NOT_READY = 0x0103,
    ROOM_PLAYER_START = 0x0104,
    ROOM_PLAYER_END = 0x0105,
    ROOM_DISMISS = 0x0106,
}